package com.util.mail;

import java.util.Date;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

/**
 * 发送邮件给多个接收者、抄送邮件
 */
public class MultiMailsender {

    
    /** 
      * 以文本格式发送邮件 
      * @param mailInfo 待发送的邮件的信息 
      */ 
        public boolean sendTextMail(MultiMailSenderInfo mailInfo) { 
          // 判断是否需要身份认证 
          MyAuthenticator authenticator = null; 
          Properties pro = mailInfo.getProperties();
          if (mailInfo.isValidate()) { 
          // 如果需要身份认证，则创建一个密码验证器 
            authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword()); 
          }
          // 根据邮件会话属性和密码验证器构造一个发送邮件的session 
          Session sendMailSession = Session.getDefaultInstance(pro,authenticator); 
          try { 
          // 根据session创建一个邮件消息 
          Message mailMessage = new MimeMessage(sendMailSession); 
          // 创建邮件发送者地址 
          Address from = new InternetAddress(mailInfo.getFromAddress()); 
          // 设置邮件消息的发送者 
          mailMessage.setFrom(from); 
          // 创建邮件的接收者地址，并设置到邮件消息中 
          Address[] tos = null; 
          String[] receivers = mailInfo.getReceivers();
          if (receivers != null){
              // 为每个邮件接收者创建一个地址
              tos = new InternetAddress[receivers.length + 1];
              tos[0] = new InternetAddress(mailInfo.getToAddress());
              for (int i=0; i<receivers.length; i++){
                  tos[i+1] = new InternetAddress(receivers[i]);
              }
          } else {
              tos = new InternetAddress[1];
              tos[0] = new InternetAddress(mailInfo.getToAddress());
          }

          // Message.RecipientType.TO属性表示接收者的类型为TO 
          mailMessage.setRecipients(Message.RecipientType.TO,tos); 
          // 设置邮件消息的主题 
          mailMessage.setSubject(mailInfo.getSubject()); 
          // 设置邮件消息发送的时间 
          mailMessage.setSentDate(new Date()); 
          // 设置邮件消息的主要内容 
          String mailContent = mailInfo.getContent(); 
          mailMessage.setText(mailContent); 
          // 发送邮件 
          Transport.send(mailMessage);
          return true; 
          } catch (MessagingException ex) { 
              ex.printStackTrace(); 
          } 
          return false; 
        } 
    /**
     * 发送邮件给多个接收者,以Html内容
     * @param mailInfo    带发送邮件的信息
     * @return 
     */
    public static boolean sendMailtoMultiReceiver(MultiMailSenderInfo mailInfo){
        MyAuthenticator authenticator = null;
        if (mailInfo.isValidate()) {
            authenticator = new MyAuthenticator(mailInfo.getUserName(),
                    mailInfo.getPassword());
        }
        Session sendMailSession = Session.getInstance(mailInfo
                .getProperties(), authenticator);
        try {
            Message mailMessage = new MimeMessage(sendMailSession);
            // 创建邮件发送者地址
            Address from = new InternetAddress(mailInfo.getFromAddress());
            mailMessage.setFrom(from);
            // 创建邮件的接收者地址，并设置到邮件消息中
            Address[] tos = null;
            String[] receivers = mailInfo.getReceivers();
            if (receivers != null){
                // 为每个邮件接收者创建一个地址
                tos = new InternetAddress[receivers.length + 1];
                tos[0] = new InternetAddress(mailInfo.getToAddress());
                for (int i=0; i<receivers.length; i++){
                    tos[i+1] = new InternetAddress(receivers[i]);
                }
            } else {
                tos = new InternetAddress[1];
                tos[0] = new InternetAddress(mailInfo.getToAddress());
            }
            // 将所有接收者地址都添加到邮件接收者属性中
            mailMessage.setRecipients(Message.RecipientType.TO, tos);
            
            mailMessage.setSubject(mailInfo.getSubject());
            mailMessage.setSentDate(new Date());
            // 设置邮件内容
            Multipart mainPart = new MimeMultipart();
            BodyPart html = new MimeBodyPart();
            html.setContent(mailInfo.getContent(), "text/html; charset=GBK");
            mainPart.addBodyPart(html);
            mailMessage.setContent(mainPart);
            // 发送邮件
            Transport.send(mailMessage);
            return true;
        } catch (MessagingException ex) {
            ex.printStackTrace();
        }
        return false;
    }
    
    /**
     * 发送带抄送的邮件
     * @param mailInfo    待发送邮件的消息
     * @return 
     */
    public static boolean sendMailtoMultiCC(MultiMailSenderInfo mailInfo){
        MyAuthenticator authenticator = null;
        if (mailInfo.isValidate()) {
            authenticator = new MyAuthenticator(mailInfo.getUserName(),
                    mailInfo.getPassword());
        }
        Session sendMailSession = Session.getInstance(mailInfo
                .getProperties(), authenticator);
        try {
            Message mailMessage = new MimeMessage(sendMailSession);
            // 创建邮件发送者地址
            Address from = new InternetAddress(mailInfo.getFromAddress());
            mailMessage.setFrom(from);
            // 创建邮件的接收者地址，并设置到邮件消息中
            Address to = new InternetAddress(mailInfo.getToAddress());
            mailMessage.setRecipient(Message.RecipientType.TO, to);
            
            // 获取抄送者信息
            String[] ccs = mailInfo.getCcs();
            if (ccs != null){
                // 为每个邮件接收者创建一个地址
                Address[] ccAdresses = new InternetAddress[ccs.length];
                for (int i=0; i<ccs.length; i++){
                    ccAdresses[i] = new InternetAddress(ccs[i]);
                }
                // 将抄送者信息设置到邮件信息中，注意类型为Message.RecipientType.CC
                mailMessage.setRecipients(Message.RecipientType.CC, ccAdresses);
            } 
            
            mailMessage.setSubject(mailInfo.getSubject());
            mailMessage.setSentDate(new Date());
            // 设置邮件内容
            Multipart mainPart = new MimeMultipart();
            BodyPart html = new MimeBodyPart();
            html.setContent(mailInfo.getContent(), "text/html; charset=GBK");
            mainPart.addBodyPart(html);
            mailMessage.setContent(mainPart);
            // 发送邮件
            Transport.send(mailMessage);
            return true;
        } catch (MessagingException ex) {
            ex.printStackTrace();
        }
        return false;
    }
    
    /**
     * 发送多接收者类型邮件的基本信息
     */
    public static class MultiMailSenderInfo extends MailSenderInfo{
        // 邮件的接收者，可以有多个
        private String[] receivers;
        // 邮件的抄送者，可以有多个
        private String[] ccs;
        
        public String[] getCcs() {
            return ccs;
        }
        public void setCcs(String[] ccs) {
            this.ccs = ccs;
        }
        public String[] getReceivers() {
            return receivers;
        }
        public void setReceivers(String[] receivers) {
            this.receivers = receivers;
        }
    }
}